Super Sonic is a character that appears in the Sonic the Comic series published by Fleetway Editions. He is a powered-up form of Sonic the Hedgehog. Super Sonic is a psychotic demon-like entity who manifests himself in Sonic's body under conditions of extreme stress or exposure to chaos energy.
Sonic frequently had to battle to keep this alter-ego in check, because Super Sonic's immense destructive powers, hyper-aggression, sadistic humour, and lack of restraint frequently endangered innocent civilians; and even Sonic's own friends. Indeed, Super Sonic seems to enjoy the prospect of killing Sonic's friends: in issue #184 he deliberately holds back to prolong the pleasure of killing them.
Super Sonic was created when Sonic absorbed a dose of evil energy that had been absorbed by the Chaos Emeralds.